Electric warp stop-motion.



'J. HANCQ.

ELECTRIC WARP STOP MOTION.

APPLICATION FILED APRA, 1913 Patented Aug. 26, 1913.

3 SHEETS-SHEET l.

J. HANGQ.

ELECTRIC WARP STOP MOTION. APPLICATION FILED APIM. 1912.

1,071,313, Patented Aug126, 1913.

3 SHEETS-SHEET 2.

J. HANGQ. ELECTRIC WARP STOP MOTION.

APPLIGATION FILED APRA. l9l8 gm 1% Pammw Aug. 26, m3.

3 SHEETB-SHEET 3.

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JOHN HANGQ, OF JAMESTOWN, NEW YORK.

ELECTRIC WARP STOP-MOTION.

Specification of Letters latent.

-Patented Aug. 26,1913.

Application filed April 4, 1913. Serial No. 758,773.

To all whom it may concern:

Be it known that 1, JOHN HANCQ, a citizen of the United States, residing at the city of Jamestown, in the county of Chautauqua and State of New York, have invented certain new and useful Improvements in Electric Warp Stop-Motions, of which the following, taken in connection with the accompanying drawings, is a specification.

The invention relates to electric warp controlling devices for looms and is an improvement on the warp stop motion shown in the application of the applicant, filed November 25th, 1912, Serial No. 733,256; and the object of the present improvement is to provide a heddle in two parts, the main portion of which may be closely fitted to the heddle frame and act as a guide for a contact strip, the parts of the heddle being so constructed that they may be easlly struck out by suitable dies from sheet metal; and the invention consists in the novel features hereinafter set forth and claimed.

In the drawings, Figure 1 is an elevation of a heddle frame with the heddles in position, the middle-portion of the frame being broken away, and showing the electrical connection whereby the electrical circuit is alternately made and broken with the rise and fall of the heddle in the loom. Fig. 2 is a sectional view of the frame at line X X in Fig. 1, showing the heddle as it is normally supported with unbroken threads; and Fig. 3 is a similar view with the thread broken and the contact strip resting upon the electrically charged bar on the lower cross rail of the frame. Fig. 4 is an elevation of the upper end of the heddle showing the slot therein and the contact strip extending up therethrough; and Fig. 5 is a similar view of the lower end of the two parts; and Fig. 6 is a similar view of the lower end with the contact strip extending down to the electrically charged bar. Fig. 7 is an edgewise elevation of the two flat strips of the heddle, showing their relation to one another with the thread broken and the contact strip resting upon the electrically charged bar to close the circuit and stop the loom; and Fig. 8 is a similar edgewise elevation of the two parts of the heddle, showing their relation to one another when the heddles are in the normal position with unbroken threads. Fig. 9 is an elevation of the contact strip. Fig. 10 is an end elevation of the loom with the electrical Warp stop motion attached thereto. Fig. 11 is a detail elevation of the magnetic tripping means for operating the stopping mechanism of the loom, the tripping mechanism. being shown in the normal position with unbroken threads; and Fig. 12 is a similar view showing the action of the magnet when the thread breaks in tripping the stopping mechanism of the loom; and Fig. 13 is a plan view of said tripping mechanism. Fig.14 is a sectional view at line Y Y in Fig. 13, showing the relation of the parts. Fig. 15 is a sectional view at line Z Z in Fig. 11. Fig. 16 is a detail elevation of the tripping plate removed from the other mechanism.

Like numerals of reference refer to cor responding parts in the several views.

The numeral 20 designates the loom frame upon which the heddle frames 21 are supported in the usual manner. The heddle frames 21 comprise the top cross rails 22 and the bottom cross rails 23 which are connected by the end pieces 2e and 25. The heddle frame 21 is preferably made of fiber or wood or some other equally good insulating material. The top and bottom cross rails 22 and 23 have the sheet metal single hooked lengthwise flanges 26 and 27 inset lengthwise in their opposite inner edges. The top flange 26 is bent to one side to form a return bend with hooked portion preferably in line with the inserted port-ion about central of the top cross rail 22. The bottom flange 27 may be formed in the same manner but is preferably attached at one side of the bottom cross rail 23 to provide room for the electrical contact bar 29 which is inset lengthwise of the upper edge of the bottom cross rail 23.

The heddle is composed of two parts, the guide strip 29 and the contact strip 30, and the two parts 29 and 30 are preferably formed from thin sheet steel so that they may be struck out by suitable dies. The guide strip 29 is provided with similarly hooked ends 31 which fit sufficiently snug upon the flanges 26 and 28 to hold the heddle firmly in line, much more firmly than is possible in heddles where the entire hed dle drops at the breaking of the thread. The guide strip 29 is bent to one side at 32 just below the upper hook 31 and just above the lower hook 31 and a hole 33 is provided in the guide strip 29 in line with the shanks 34 of the hooks 31. The thread eye 35 in the guide strip 29 is made to one side of said strip so as-to be in line with the holes 33. The contact strip 30 is struck out from the thin sheet steel having diminished ends 37 and 38 with shoulders 39 so that said ends 37 and 38 may be inserted through the holes 33 and the shoulders 39 will prevent the complete withdrawal of the contact strip 30 from the guide strip 29. A thread eye 40 is provided in the contact strip 30 which coincides with the thread eye 35 in the guide strip 29 when the threads 36 are unbroken, but'which drops down below the thread eye 35 when the threads 36 break, as shown in Figs. 3 and 7.

The heddle frame 21 is supported on the loom by means of hooks 41 and 42 in the top cross rail 22 and by hooks 43 and 44 in the bottom cross rail 23. The electrical connection to the frame 21 is constant, the heddles not having to make and breakcontact with the frame since the special contact strip 30 is provided which falls on the contact bar 28 when the thread breaks. This greatly simplifies the entire action of the heddles and frame, and the' close fitting guide strips 29 hold the heddles much more firmly in line thereby affecting the holding of the warp threads. The electrical contact upper edge of the flange 26. The other hook 42 is connected by a wire 45 which is placed in a groove 46 which extends from the hook 42 to the contact bar 28 in the lower cross rail 23. The heddle frame 21 is supported between the upper levers 47 and the under levers 48 by means of wire links 49, 50 and 54 and insulating links 51. The contact wires 52 are preferably attached to the links 50 and connect to the hooks 41 and 42 and extend to the opposite poles of a battery or source of electrical supply 53 thereby connecting the hooks 41 and 42 to the opposite poles of apparent that the heddle frame 21 may be raised and lowered by the levers 47 and 48 and that when the unbroken threads 36 are working normally the electrical circuit will remain broken, but as soon as a thread 36 breaks the contact strip 30 supported on said thread 36 will drop onto the electrically charged bar 28 thereby completing the electrical circuit and stopping the loom.

The stopping mechanism for the different styles of looms is-usually operated by means of a lever or crank and shaft. A small tripping mechanism is shown by which to electrically operate the lever or crank. A lever 55 is shown in the drawings herewith, but it is apparent that a shaft with a crank or arm may be turned in precisely the same tooth 64 by tipping the end of the tooth 64 and is is shown as made through the hook 41 to the I ing the bar said battery 53. It is now.

manner that the lever 55 is moved. A; crank arm or wheel 56 is attached to the crank shaft 57 of the loom and a pitman 66, and a bar 55: is pivotally attached to the pitman 66 and slidably mounted on a second bar 59, which is supported in a bracket piece 60 on the frame 20 of the loom alongside the lever 55. The bar 59 extending to within a short distance of the lever 55 to be pressed thereagainst by the bar 58 when the thread breaks in the following manner: The tripping plate 61 is pivotally mounted in the bar 59 and end 62 of the tripping plate is made heavy, while the end 63 is made light to normally balance the tripping plate 61 downward at end 62 and out of the way of bar 58. Bar 58 has a tooth 64 out thereon in close proximity to the end 62 of the tripping plate 61 so that as bar 58 is moved backward and forward, as shown in dotted line in Fig. 9, by means of the crank 56, the will pass backward and forward over the end 62 of the tripping plate 61.

' A. magnet 65 is placed on the bracket piece 60 beneath the end 61, and when the thread trical circuit is thereby before described,

63 of the tripping plate breaks and the eleccomplete, as hereinthe electrical current passes through the magnet 65 thereby empowering themagnet 65 to draw downward on the end 63 of the tripping plate 61, there- 62 upward into the path engaged thereby and causes the bar 59 to unite with the bar 58 in its reciprocating movement thereby press- 59 against the lever 55 and giving said lever the required movement to operate the stopping mechanism of'the loom.

I claim as new:

1. In a device of the class described, a heddle comprising a guide strip having holes therethrough and a central thread-eye, and a contact strip slidably mounted in said holes in said guide strip and having a thread-eye normally contiguous with the thread-eye in said guide strip.

2. In a device of the class described, a two-part heddle comprising a guide strip having a central thread-eye, sidewise bends in said guide strip, said guide strip having holes in said bends, and a contact strip slidably mounted in said holes in said guide strip and having a central thread-eye nor mally contiguous with the thread-eye in said guide strip. U

3. In a device of the class described, a heddle comprising a guide strip having a central thread-eye, sidewise bends in said guide strip above and below said central thread-eye having guide holes therethrough, a contact strip having a central thread-eye normally in line with the central thread-eye of said guide strip, the ends of said contact strip narrowed to enter said guide holes in said guide strip, and shoulders connecting said reduced ends to the main portion of said contact strip to prevent the withdrawal of said contact strip from the guide strlp.

4. In a device of the class described, a heddle frame comprising upper and lower cross bars and connective end pieces, lengthwise hooked flanges on the inner edges of each of said upper and lower cross bars, heddles consisting of guide strips with hooked ends to engage over said hooked flanges and having uide holes therethrough and a central threa -eye, contact strips slid- 

